Normally you need a MatrixTransform node attach to the propeller geometry and apply the appropriate rotations to that. Obj only describes the geometry and the possibly the textures for model. Maybe the easiest thing to split the cessna geometry into the body of the plane and the propeller. Load both models and attach a MatrixTransfrom to the propeller. Next create an instance of a MatrixTransfrom and an instance of NodeCallback which updates the rotational position of the propeller every frame. It maybe tricky to align the propeller and the Cessna body after loading them. Just my 2 cents worth.
On Wednesday, June 29, 2022 at 7:56:02 PM UTC+10 [email protected] wrote: > Hi, > > given the cessna model, I wanted to know if there is a possibility to hook > the motor blade knot to make it spin ... > > Anyway, if I had a model of a helicopter (.obj), what is the way to > generate the spin effect? > > Thanks > -- You received this message because you are subscribed to the Google Groups "OpenSceneGraph Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/osg-users/5f66a7d5-dd7b-4937-ad3e-c8f2e41974a8n%40googlegroups.com.
